Toyota 1G-E

Toyota 1G-EThe Toyota 1G-E is a 2.0 L (1,988 cc, 121.3 cu·in) straight-six, natural aspirated four-stroke liquid-cooled internal combustion vertical gasoline engine, manufactured by Toyota from 1984 to 1991.

A 75.0 mm (2.95 in) cylinder bore and 75.0 mm (2.95 in) piston stroke give the 1G-E engine a total of 1,988 cc of displacement. Compression ratio rating is from 9.2:1.

This engine produced 105.0 PS (77 KW; 103.5 HP) at 5,200 rpm of maximum horsepower and 160 Nm (16.32 kg·m; 118.08 ft·lb) at 4,000 rpm of peak torque.

The Toyota 1G-E features:

  • Cast-iron cylinder block
  • Aluminum cylinder head
  • SOHC design (Single belt-driven overhead camshafts)
  • Multi-Point fuel injection
  • Electronic throttle body (3-rd gen.)
  • Forced lubrication system
  • Liquid cooling system
  • Electric starter

General information

Engine Specifications
Engine model1G-E
Engine type4-stroke, SOHC, straight-six
Displacement2.0 L, 1,988 cm3 (121.3 cu in)
Max. horsepower105.0 PS (77 KW; 103.5 HP) at 5,200 rpm
Max. torque160 Nm (16.32 kg·m; 118.08 ft·lb) at 4,000 rpm
Cooling systemLiquid-cooled
Lubricating systemForced lubrication
Ignition system
Fuel systemMulti-Point fuel injection)
Fuel usedGasoline
Starting systemElectric starter
Firing order:1-5-3-6-2-4
Dimensions (L x W X H)
Dry weight180 kg (397 lbs)

Cylinder Block and Head


Cylinder block
Cylinder block alloy:Cast-iron
Compression ratio:9.2:1
Cylinder bore:75.0 mm (2.95 in)
Piston stroke:75.0 mm (2.95 in)
Cylinder internal diameter (standard):75.000-75.030 mm (2.9528-2.9539 in)
Piston skirt outer diameter (standard):74.955-74.985 mm (2.9510-2.9520 in)
Number of piston rings (compression / oil):2/1
Ring side clearance (Top):0.040-0.080 mm (0.0016-0.0031 in)
Ring side clearance (Second):0.030-0.070 mm (0.0012-0.0028 in)
Ring end gap (Top): NPR: 0.150-0.390 mm (0.0059-0.0153 in)
Riken: 0.150-0.440 mm (0.0059-0.0173 in)
Ring end gap (Second): NPR: 0.150-0.390 mm (0.0059-0.0153 in)
Riken: 0.100-0.390 mm (0.0039-0.0153 in)
Ring end gap (Oil): NPR: 0.200-0.590 mm (0.0079-0.0232 in)
Riken: 0.300-0.990 mm (0.0118-0.0390 in)
Number of main bearings:7
Crankshaft main journal diameter:54.985-55.000 mm (2.1647-2.1653 in)
Crankpin journal diameter:41.985-42.000 mm (1.6529-1.6535 in)
Cylinder head
Cylinder head alloy:Aluminum
Valve arrangement:SOHC, belt driven
Valves:2,(12 valves in total)
Valve head diameter (INTAKE):
Valve head diameter (EXHAUST):
Valve length (INTAKE):93.100-93.700 mm (3.6653-3.689 in)
Valve length (EXHAUST):93.000-93.600 mm (3.6614-3.685 in)
Valve steam diameter (INTAKE):5.970-5.985 mm (0.235-0.2356 in)
Valve steam diameter (EXHAUST):5.965-5.980 mm (0.2348-0.2354 in)
Valve spring free length (INTAKE): Inner: 35.50 mm (1.3976 in)
Outer: 38.00 mm (1.4960 in)
Valve spring free length (EXHAUST): Inner: 35.50 mm (1.3976 in)
Outer: 38.00 mm (1.4960 in)

Tightening torque

Tightening torque specs
Cylinder head:60-70 Nm (6.1-7.1 kgf·m; 44.3-51.7 ft·lb)
Main bearing cap bolts:60 Nm (6.1 kg·m; 44.3 lb·ft)
Connecting rods cap bolts:50 Nm (5.1 kg·m; 36.9 lb·ft)
Spark plug:18 N·m (1.8 kg·m, 13.3 lb·ft)

Service Data

Cylinder compression pressure
Standard:13.0 kg/cm2, 185 psi/ 300 rpm
Minimum:10.0 kg/cm2, 142 psi/ 300 rpm
Oil system
Lubrication system:Forced lubrication
Recommended engine oil, SAE:10W-30
Oil type, API:SG or better
Engine oil capacity:3.9 l (4.1 US qts, 3.4 Imp qts)
Oil change interval, km (miles):10,000 (6,000)
Ignition system
Spark plug torque:18 N·m (1.8 kg·m, 13.3 lb·ft)

Vehicle applications

ModelYears Produced
Toyota Cressida (X70)1984-1988
Toyota Crown (S130)1987-1991
Toyota Mark II Van (X70)1984-1991
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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